RWTH Publications - UB

During the specified maintenance window, the IT Center will perform maintenance on the MySQL databases used by the Multi-Factor Authentication (MFA) service. As part of the maintenance, the databases will be unavailable for a total of approximately 15 minutes.

During this time, new logins to services using RWTH Single Sign-On will not be possible. Existing sessions will remain active and will not be affected by the maintenance.

Due to maintenance work, the RWTH Publications application will be unavailable for approximately one hour starting at 12:00 p.m. on July 29, 2026. We ask for your understanding.

Maintenance has been completed.

During the specified maintenance window, the IT Center will perform maintenance on the MySQL databases used by the Multi-Factor Authentication (MFA) service. As part of the maintenance, the databases will be unavailable for a total of approximately 15 minutes.

During this time, new logins to services using RWTH Single Sign-On will not be possible. Existing sessions will remain active and will not be affected by the maintenance.

Due to ongoing bot traffic we had to activate a challenge. Please contact pubadmin@ub.rwth-aachen.de if you have difficulties to contact the server.

Aufgrund von Wartungsarbeiten steht die Anwendung RWTH Publications am 23.06.2026 ab 12:00 Uhr für ca. eine Stunde nicht zur Verfügung.

To resolve the current issues, maintenance work will be performed today between 4:30 p.m. and 5:30 p.m. During this time, there will be a service interruption affecting most of the services at RWTH for approximately 10 minutes. Please take this last-minute announcement into account when planning your work.

The work has been completed, and the issue has been successfully resolved.

Even though most of the services are up and running again, the root cause of the problem has not been resolved. We are continuing to work behind the scenes to fix the issue. However, this also means that disruptions may still occur.

The work has been completed, and the issue has been successfully resolved.

Login via RWTH Single Sign-On (SSO) is currently disrupted. As a result, it is not possible to log in to any connected services.

There is currently a widespread disruption affecting, among other things, the SSO, though not limited to it. The root cause analysis is still underway.

Most of the services are currently up and running again. The analysis is ongoing. We cannot rule out the possibility of further outages.

Most of the services are up and running again. Please note, however, that the underlying issue has not yet been resolved, and disruptions may therefore continue to occur.

Explanation Following the Outage:
On June 22, 2026, starting at 9:00 a.m., there was a widespread outage affecting our services, which primarily impacted the RWTH Single Sign-On but was not limited to it. By around 12:00 p.m., the situation had largely stabilized, allowing users to log in via RWTH Single Sign-On again; however, other issues (e.g., with the IT Center ticket tool and RWTHmoodle) persisted. On the same day, between 4:30 p.m. and 5:00 p.m., the data center firewall was rebooted, which resolved the remaining issues. The disruption was caused by problems with the data center core switch. To ensure a lasting improvement in the situation, maintenance on the affected system was successfully carried out on June 30, 2026.

There may currently be issues logging in via RWTH Single Sign-On (SSO).
This is because a new certificate has been active in the metadata since 9:30 a.m. today.
The relevant department has been notified and is working with the system operators to resolve the issue.